Home / 2,215.46-3,305.90-2,018.97

Finding the Fourth Proportional to 2,215.46, 3,305.90 and 2,018.97

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Solution

The fourth proportional to 2,215.46, 3,305.90 and 2,018.97 is: 3,012.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,215.46 : 3,305.90 = 2,018.97 : x
  2. Step 2: Convert to fraction form
    2,215.46/3,305.90 = 2,018.97/x
  3. Step 3: Cross multiply
    2,215.46x = 3,305.90 × 2,018.97
  4. Step 4: Simplify right side
    2,215.46x = 6,674,512.92
  5. Step 5: Solve for x
    x = 6,674,512.92/2,215.46
  6. Step 6: Final answer
    x = 3,012.70

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Half scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.